Glycosylation and related congenital defects (WP4521)
Homo sapiens
Glycosylation is the most common postranslational modification. Defects in this pathway lead to autosomal recessive disorders, called congenital disorders of glycosylation (CDG). Up to date about 50 CDGs have been identified and more are expected to be discovered. This category of metabolic disorders can be divided into four basic groups depending on where the glycosylation process occurs on the molecule. The depicts pathway depicts the group of N-glycosylation. Generally, N-glycosylation processes spread over three cellular compartments - cytosol, endoplasmic reticulum and Golgi apparatus. The associated mortality rate in combination with the limited treatment options for CDG, points out the relevance for further investigations of this pathway. Disorders resulting from an enzyme defect are highlighted in pink. This pathway was inspired by Chapter 30 of the book of Blau (ISBN 3642403360 (978-3642403361)).
Authors
Eveline Schoenmaker , Denise Slenter , Britt Pieters , Lauren J. Dupuis , Irene Hemel , Egon Willighagen , Friederike Ehrhart , Finterly Hu , and Eric WeitzActivity
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Cited In
- DNA methylation of ARHGAP30 is negatively associated with ARHGAP30 expression in lung adenocarcinoma, which reduces tumor immunity and is detrimental to patient survival (2021).
- Human Monocytes Exposed to SARS-CoV-2 Display Features of Innate Immune Memory Producing High Levels of CXCL10 upon Restimulation (2023).
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Organisms
Homo sapiensCommunities
Inherited Metabolic Disorders (IMD) Pathways Rare DiseasesAnnotations
Pathway Ontology
altered carbohydrate metabolic pathway N-acetylglucosamine, N-acetylmannosamine and N-acetylneuraminic acid dissimilation pathway disease pathwayDisease Ontology
autosomal recessive disease inherited metabolic disorder congenital disorder of glycosylationLabel | Type | Compact URI | Comment |
---|---|---|---|
dolichyl phosphate | Metabolite | chebi:57683 | |
UDP | Metabolite | chebi:58223 | |
beta-D-glucose | Metabolite | chebi:15903 | |
UDP-N-acetylalpha-D-glucosamine | Metabolite | chebi:57705 | |
GlcNAc-PP-Dol | Metabolite | chebi:58427 | In RHEA: N-acetyl-α-D-glucosaminyl-diphosphodolichol |
dolichyl beta-D-mannosyl phosphate | Metabolite | chebi:58211 | |
Dolichyl phosphate | Metabolite | chebi:57683 | |
GDP | Metabolite | chebi:58189 | |
Man5-GlcNac2-PP-Dol | Metabolite | chebi:132516 | |
Man8-GlcNac2-PP-Dol | Metabolite | chebi:132519 | |
Man7-GlcNac2-PP-Dol | Metabolite | chebi:132517 | |
Man9-GlcNac2-PP-Dol | Metabolite | chebi:132520 | |
Glc2Man9-GlcNac2-PP-Dol | Metabolite | chebi:132522 | |
GlcMan9-GlcNac2-PP-Dol | Metabolite | chebi:132521 | |
Glc2Man9-GlcNac2-Prot | Metabolite | chebi:59082 | |
Glc3Man9-GlcNac2-Prot | Metabolite | chebi:132537 | |
Man3-GlcNac4-Prot | Metabolite | chebi:60615 | |
Man3-GlcNac3-Prot | Metabolite | chebi:60615 | |
GDP-mannose | Metabolite | chebi:57527 | |
Dol-P-Man | Metabolite | chebi:58211 | |
Mannose 6-phosphate | Metabolite | chebi:58735 | |
Mannose 1-phosphate | Metabolite | chebi:58409 | |
Fructose 6-phosphate | Metabolite | chebi:61527 | |
Man5GIcNAc2-PP-Dol | Metabolite | chebi:132515 | |
Dolichol phosphate | Metabolite | chebi:57683 | In RHEA stated as dolichyl phosphate, and in this reaction it results in a -2 charge. |
Dolichol-PP | Metabolite | chebi:15750 | In CheBi known as Dolichol diphosphate |
Man3GIcNAc2-PP-Dol | Metabolite | chebi:132511 | |
Dolichol | Metabolite | chebi:16091 | Full name in RHEA: di-trans,poly-cis-dolichol |
Polyprenol | Metabolite | chebi:67132 | In RHEA and UniProt known as di-trans,cis-polyprenol. |
Man2GIcNAc2PP-Dol | Metabolite | chebi:132510 | |
Mevalonate | Metabolite | chebi:17710 | |
ManGlcNAc2-PP-Dol | Metabolite | chebi:58472 | |
GlcNAc2-PP-Dol | Metabolite | chebi:57269 | Aka N-acetylglucosamine |
DOLK | Protein | uniprot:Q9UPQ8 | Dolichol kinase, Book label: 30.38 |
ALG13 | Protein | uniprot:Q9NP73 | Labelled in UniProt as Putative bifunctional UDP-N-acetylglucosamine transferase and deubiquitinase ALG13.Found manually through RHEA identifier. This enzyme was not indicated in the Blau Book, but it catalyzes this exact reaction. |
DPAGT1 | Protein | uniprot:Q9H3H5 | In UniProt described as UDP-N-acetylglucosamine--dolichyl-phosphate N-acetylglucosaminephosphotransferase.Found manually through RHEA identifier reaction. Not indicated in the Blau Book Chapter 30. |
GMPPB | Protein | uniprot:Q9Y5P6 | AKA mannose-1-phosphate guanylyltransferase [https://en.wikipedia.org/wiki/Mannose-1-phosphate_guanylyltransferase] |
B4GALT1 | Protein | uniprot:P15291 | AKA B4GALT1; beta-1,4-galactosyltransferase 1; book label: 30.34 |
DPM2 | Protein | uniprot:O94777 | |
MGAT2 | Protein | uniprot:Q10469 | AKA MGAT2; N-acetylglucosaminyltransferase 2; book label: 30.13Function'Plays an essential role in protein N-glycosylation. Catalyzes the transfer of N-acetylglucosamine (GlcNAc) onto the free terminal mannose moiety in the core structure of the nascent N-linked glycan chain, giving rise to the second branch in complex glycans.' [https://www.uniprot.org/uniprot/Q10469] |
MOGS | Protein | uniprot:Q13724 | AKA GCS1; Glucosidase 1; book label: 30.14Function:'Cleaves the distal alpha 1,2-linked glucose residue from the Glc3Man9GlcNAc2 oligosaccharide precursor in a highly specific manner.' [https://www.uniprot.org/uniprot/Q13724] |
TUSC3 | Protein | uniprot:Q13454 | AKA TUSC3; oligosaccharyltransferase subunit tusc 3; book label: 30.15 |
30.16 | Protein | uniprot:Q9H0U3 | Aka MAGT1; magnesium transporter 1 |
ALG8 | Protein | uniprot:Q9BVK2 | AKA ALG8; Glucosyltransferase 2; book label: 30.6 |
ALG6 | Protein | uniprot:Q9Y672 | Aka ALG6; glucosyltransferase 1; book label: 30.3 |
ALG9 | Protein | uniprot:Q9H6U8 | book label: 30.10 |
ALG12 | Protein | uniprot:Q9BV10 | AKA ALG12, Mannosyltransferase 8; book label: 30.5 |
ALG9 | Protein | uniprot:Q9H6U8 | Aka ;mannosyltransferase 7-9; Book label: 30.10 |
MPDU1 | Protein | uniprot:O75352 | AKA MPDU1; Dol-P-Man utilization 1; Book label: 30.33 |
ALG3 | Protein | uniprot:Q92685 | AKA ALG3, mannosyltransferase 6; Book label: 30.4Function:'Adds the first Dol-P-Man derived mannose in an alpha-1,3 linkage to Man5GlcNAc2-PP-Dol' [https://www.uniprot.org/uniprot/Q92685] |
MPI | Protein | uniprot:P34949 | AKA MPI, phosphomannose isomerase; Book label: 30.2 |
PMM2 | Protein | uniprot:O15305 | AKA PMM, phosphomannomutase 2; book label: 30.1 |
DPM1 | Protein | uniprot:O60762 | AKA DPM1, GDP-Man:Dol-P mannosyltransferase subunit 1; book label: 30.31 |
DPM3 | Protein | uniprot:Q9P2X0 | AKA DPM3, GDP-Man:Dol-P mannosyltransferase 3; book label: 30.32'Stabilizer subunit of the dolichol-phosphate mannose (DPM) synthase complex; tethers catalytic subunit DPM1 to the ER' [https://www.uniprot.org/uniprot/Q9P2X0] |
SRD5A3 | Protein | uniprot:Q9H8P0 | Known as polyprenol reductase, which catalyzes reduction of the alpha-isoprene subunit of polyprenol. But also known to have steroid dehydrogenase activity. Book label:30.39 |
ALG1 | Protein | uniprot:Q9BT22 | Chitobiosyldiphosphodolichol beta-mannosyltransferase mediates the hexosyl group transfer.In Blau Book known as Mannosyltransferase 1, label: 30.9 |
DPAGT1 | Protein | uniprot:Q9H3H5 | Also known as UDP-N-acetylglucosamine-dolichyl-phosphate N-acetylglucosaminephosphotransferase, which transfers the hexosyl group. Book label: 30.8 |
ALG11 | Protein | uniprot:Q2TAA5 | GDP-Man:Man(3)GlcNAc(2)-PP- Dol alpha-1,2-mannosyltransferase; Book label: 30.11 |
ALG2 | Protein | uniprot:Q9H553 | Alpha-1,3/1,6- mannosyltransferase ALG2; Book label: 30.7 |
ALG14 | Protein | ncbigene:199857 | ALG14 |
References
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